<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>第一个Vue的程序</title>
  <script src="../vue.js"></script>
</head>
<body>
  <div id="root">
    <!-- 声明式渲染 -->
    <button @click="handleClick">{{count}}</button>
  </div>
  <script>
    var app = new Vue({
      el: '#root',
      data: {
        count: 100
      },
      methods: {
        handleClick() {
          this.count++
        }
      },
    })
    // 响应式
    // app.count = 10000
  </script>
</body>
</html>